I spent a month at Birdies apartment. The facilities, especially if you wish to cook are very basic and the mattress is quite hard. It was good to have access to a washing machine. The location is good about 10min walk from Thong Lo BTS and it was good value for money with a monthly discount.
Birdie is quick to respond and solved some of the issues I had at the start of my stay in a timely manner. Some issues were not addressed for the entire stay.